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70925040 = 2432598507
BaseRepresentation
bin1000011101000…
…11101011110000
311221110100212100
410032203223300
5121124100130
611012100400
71520565354
oct416435360
9157410770
1070925040
113704303a
121b904700
13119038a4
1495c3464
15635ec60
hex43a3af0

70925040 has 60 divisors (see below), whose sum is σ = 238192344. Its totient is φ = 18913152.

The previous prime is 70925033. The next prime is 70925047. The reversal of 70925040 is 4052907.

70925040 is a `hidden beast` number, since 70 + 92 + 504 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (70925033) and next prime (70925047).

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×709250402 = 10060722598003200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70924995 and 70925013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70925047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48534 + ... + 49973.

Almost surely, 270925040 is an apocalyptic number.

It is an amenable number.

70925040 is an abundant number, since it is smaller than the sum of its proper divisors (167267304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70925040 is a wasteful number, since it uses less digits than its factorization.

70925040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98526 (or 98517 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 70925040 is about 8421.7005408647. The cubic root of 70925040 is about 413.9359979476.

Adding to 70925040 its reverse (4052907), we get a palindrome (74977947).

The spelling of 70925040 in words is "seventy million, nine hundred twenty-five thousand, forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 98507 197014 295521 394028 492535 591042 788056 886563 985070 1182084 1477605 1576112 1773126 1970140 2364168 2955210 3546252 3940280 4432815 4728336 5910420 7092504 7880560 8865630 11820840 14185008 17731260 23641680 35462520 70925040